Pattern mechanism for looms.



Patented Apr. 29, I902. A. 8. COWAN.

PATTERN MECHANISM FOR LOUMS.

(Application filed Oct. 31, 1901.

4 Sheets-Shoat I.

(No Model.)

n: NORRIS PETERS co. PHOTD-LITHO., WASHINGTON, o. c

No. 699,l04. Patented Apr. 29, I902.

A. S. COWAN.

PATTERN MECHANISM FOR LODMS.

(Application filed Oct. 31, 1901.1 (No Model.) 4 Sheets-Sheet 2.

ill

. l ""mlm mun mil No. 699,104. Patented A r. 29, 1902.

' A. s. COWAN.

PATTERN MECHANISM FOR Looms; (Application filed on. 31, 1901.

(No Model.) 4 Sheets-SheeL3,

Zn, awe/M2 0 w: ucnms PETERS c0 mom-urns WASHNGTON, u, c.

No. 699,l04. Patented Apr. 29, I902.

A. S. BOWAN.

PATTERN MECHANISM FOR LOOII IS.

(Application filed ocL' 31, 1901.

(No Model.) 4 Sheets-Sheet 4.

Q avww mo 7 44 7 isW JMMUm OWZ UNITED STATES V PATENT OFFICE.

ARTHUR S. COVVAN, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMP- TON itKNOWLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION OFMASSACHUSETTS.

PATTERN MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 699,104, dated April29, 1902.

Application filed October 31,1901. Serial No. 80.652. (N model.)

To aZZ whom it may concern: I Be it known that LARTHUR S. COWAN, acitizen of the United States, residing at Worcester, in the county ofWorcester and State of 1Vl'assachusetts,haveinventedcertainnewand usefulImprovements in Pattern Mechanism for Looms, of which the following is aspecification. I

My invention relates to looms, and particu- IO larly to the patternmechanism of that class of looms in which, in connection with thedropbox-pattern chain mechanism, an auxiliary or multiplier patternchain mechanism is used, by means of which certain bars of theboxpattern chain are repeated, as desired. This class of looms is nowwell known, and I will particularly refer to United States LettersPatents No. 413,369, of October 22, 1889, No. 582,924, of May 18, 1897,and No. 620,861, of

March 7, 1899, whichshow and describe the pattern mechanism referred toand with which my present improvements may be combined.

The object of myinvention is to provide in this class of looms'anadditional multiplierpattern chain mechanism, combined with the ordinarydrop-box-pattern chain mechanism and the ordinarymultiplier-patternlchain mechanism, by means of which a shorter boX-pattern chain may be used than is the case' 0 when only onemultiplier-pattern chain mech' anism is used.

My invention consists in certain novel features of construction of myimprovements, as will be hereinafter fully described.

5 I have shown in the drawings myimprovelnents combined with the patternmechanisms shown in the drawings of Patents No. 582,924 and No. 620,861,above referred to, and particularly shown in Fig. 1 of Patent No.

Referring tothe drawings, Figure 1 is a plan view of the patternmechanisms and other parts corresponding to Fig. 1 of Patent driven partof the loom.

anism and the two multiplier-pattern chain mechanisms shown in Fig. 1with some of the parts in a different position. 'Fig. 4 corresponds toFig. 3, but shows some of the parts in a different position. Fig. 5shows a detached view of the compound lever shown in Fig. 2, showing thelever in a different position. Fig. 6 corresponds to Fig. 5, but showsthe compound lever in a different position. Fig. 7 is a section on line7 7, Fig. 2, looking in the di= rection of arrow b, same figure, showingan edge view to illustrate the arrangement of the parts-of the compoundlever. Fig. 8 is a section through the dropbox-pattern chain and barrel,taken at a point indicated byline 8 8, Fig. 1, looking in the directionof arrow 0, showing the complete chain made up of bars,connecting-links, and diiferent-sized rolls and tubes, which are notshown in Fig. 1, and the indicator-lever extending over said chain; andFig.9 shows a plan view of the chain 7e shown in Fig. 8 extended.

It'is not necessary to describe the dobbya pattern chain mechanism(shown in Fig. 1)

.-or the mechanism for operating the same from the drop-boX-patternchain,'as the same form no part of my present invention andare fullyshownand described in Patent No. 620,861, above'referred to.

It is only necessary to describe herein my improvements above referredto.

In the accompanying drawings, 10 is a portion of the dobby-framesupported on the upper end of the loom side or frame. (Not shown.) Tothe dobby-frame 10 are secured the bracket 11 and the frame 11 11",which support the drop-box-pattern chain mechanism, and twomultiplier-pattern chain mechanisms and the operating-shafts and otherparts.

The drivingshaft 12 has a gear13- loose thereon, but which maybeclutched thereto by any ordinary clutch mechanism (not shown) to rotatesaid shaft. The gear 13 is driven by a system of gears (not shown) onsome The shaft12 alsohas 5 a gear 14 thereon, which meshes with a gear15, fast on a shaft 16. The gear 15 also meshes with a gear 17, fast ona shaft 18, which has at its otherend a hand-wheel 18. in alinement withthe shaft 12, and at the ends of the shafts 19 and 16 is a system ofgears for moving in a forward or reverse direction the dobby-patternchain, as fully described in Patent No. 620,861, before referred to.

On the shaft 16, which is rotated when the driving-shaft 12 is inoperation, is loosely mounted a sleeve 24, having fast thereon myadditional multiplier-pattern chain-cylinder 25, carrying apattern-chain made up of bars carrying rolls and tubes and connected bylinks in the usual way.

In Figs. 1 and 1 only one bar 26, with a roll 27 thereon, is shown onthe cylinder 25, and in Fig. 3 two bars, each with a tube 27 there on,are shown 011 said eylinder25. Also fast on the sleeve 2% is astar-wheel 28, which is operated to revolve the sleeve 2% and themultiplier-pattern chain-cylinder by the pinwheel 29, provided withoppositely-extending pins 29 and 29, one of which 29' when the pin-wheel29 is moved into the proper position engages the star-wheel 28, as shownin .Fig. 3, to operate the pattern chain-cylinder 25.

An indicator-lever 30, pivoted at one end ona stud 31, extends over thepattern-chain on the multiplier-pattern chain-cylinder 25, and themovement of said lever is governed by the pattern-surfaces on saidchain. To the outer free end of said indicator-lever 30 is attached aconnector 77 to a lever, to be hereinafter described.

The shaft 18, which is revolved when the driving-shaft is in operation,has a sleeve 33 fast thereon, on which is a spline 3%. On the sleeve 33is mounted the hub 29' of the pinwheel 29, above referred to. Saidpin-wheel 29 revolves with the shaft 18 and sleeve 33 through engagementwith the spline 34 on said sleeve 33, but may be moved. in the directionof the lengthof the sleeve 33 and shaft 18 to cause the pin-wheel 29 tohe moved into and out of engagement with the star-wheel 23 and also intoand out of engagement with -a second star-wheel 35, fast on asleeve 36,

loose on the shaft 37 of the drop-boxpattern chain mechanism. Also faston the sleeve 36 is the ordinary 1nultiplier-pattern chain-cylinder 33,carrying a pattern-chain made up of bars carrying rolls and tubes andconnected by links in the usual way. Only one bar 39, with a roll 40thereon, is shown in Figs. 1 and 3, and two bars 39, each with a tube-l0 thereon, are shown in Fig. 4.

The revolution of the star-wheel 35 through the engagement of thepin-wheel. 29 therewith causes the multiplier-pattern chain-cylinder 38to revolve.

Extending over the pattern-chain of the multiplier-patternchain-cylinder 33 is an indicator-lever 42, pivoted at one end on a studL3 in a support H. To the free end of the indicator-lever 42 is attacheda connector 78 to a lever, to be hereinafter described.

On the sleeve 33 on the shaft 13 is mounted a second pin wheel 45,having one pin 49 A shaft 195s thereon.

The pin-wheel 45 is splined on the sleeve 33 by a spline 47 to revolvewith said sleeve and to have a longitudinal motion in the direction ofthe length of said sleeve to move the pin-wheel 15 into or out ofengagement with a star-wheel 48, fast on a sleeve 49, loose on the shaft37 of the drop-box-pattern chain-cylinder. Also fast on the sleeve :9 isthe pattern chain-cylinder 50, carrying a pattern-chain made up of barscarrying rolls and tubes and connected by links in the usual way. Onlyone bar 51 and one set of rolls are shown in Fig. 1.

Extending over the pattern-chain on the cylinder are a series of levers,one of which,

.53, corresponds to lever 38, (shown and described'in Patent No.(320,861, above referred to,) and four of which, 54:, are the indicatorlevers for the drop-boxes, while the fifth, 55-, forms a part of myimprovements.

All of the levers 53, 5 1, and 55 are mountedon a stud 56, secured to asupport 57.

I will now describe the mechanism. for-automatically moving thepin-wheels 2.9 and l5 to operate the twomultiplier-patternchaincylinders 25 and 38 and the drop-box-patternchain-cylinder 50.

In the downwardly-extendingsupport 53 on the frame 11 11 (see Fig.2}.are supported two parallel sliding rods 59-and 60. On one end of therod 59 is a collar 61, secured by a set-screw 62 and recessed on itsunder side at 61 to receive the upper end of the angle-lever (53,pivoted on a stud 6a in the end 65' of the rod 65.

A spring 66 .is attached at one end to an extension 93' on anangle-lever (53-,.. and the other end of said spring is attachedto astationary collar 97 on the rod 65. To the arm 63 of the angle-lever 63is attached the lower end of a connector 68, the upper end of which isattached to the free end of theindicator-lever 55, extending over thebox pattern chain-cylinder 50. On the opposite end of the rod 59 issecured the lower end of an arm (39, the upper endof which, (59, is

forked to extend into and engage an annular" groove in the hub 29 ofjthepin-wheel 29.-

The longitudinal. movement of the pin wheel 29, splined on thesleeve tomove the same into engagem ent with the star-wheel 28, as shown in Fig.3, or the star-wheel 35,

as shown in Fig. 4, or into an intermediateposition, as shown in Fig. 1,is controlled by the movement of the indicator lever 55' throughconnector 08, angle-lever 63, sliding.

rod 59, and forked arm 69, according to whether a large roll 52 or asmaller roll 52-or I KC the angle-lever 72 has a stud 75 thereon, onwhich is mounted a boss or hub 7 6 of the centrally-pivoted lever '7 6.

To one end of the lever 76 is attached the lower end of a connector 77,the upper end of which is attached to the indicator-lever 30,extendingover the multiplier-pattern chaincylinder 25. To the oppositeend of the lever 76 is attached the lower end of a connector 78, theupper end of which is attached to the indicator -lever 42, extendingover the multiplier-pattern chain-cylinder 38.

On the sliding rod 60 is secured the lower end of an arm 79, the upperend of which, 79,'is forked to extend into and engage an annular groovein the hub 45"of the pinwheel 45.

' The longitudinal motion of the pin-wheel 45, splined on the sleeve 33,to move the same into engagement with the star-wheel48 to revolve. saidstar-wheel and the box-pattern chain-cylinder 50 or out'of engagementwith said star-wheel to leave the cylinder 50 at rest, is controlled bythe movement of the indicator-lever 30, extending over thepatternsurface on the multiplier-pattern chain-cylinder 25, and theindicator-lever, 42, extending over the:pattern-surface on themultiplier-pattern chain-cylinder 38 through connectors 77 and 78,lever- 76, angle-lever 72, sliding rod 60, and forked arm 79,according-" to whethera roll or a tube on the patternsurface comes underthe indicator-levers 30 and 42. r

I will now briefly describe the operation of the drop-box-pattern chainmechanism and two multiplier pattern chain mechanisms shown in thedrawings and above described.

Supposing theparts to be in the position shown in Fig. 1, as shown insaid figure there is a roll 27 under the indicator lever 30.

There isonly one roll on the pattern-chain.

on the multiplier-pattern chain-cylinder 25. The rest of the chain (notshown) is made up of tubes only. There is a roll 40 undertheindicator-lever 42. This is the only roll-on the pattern-chain on themultiplier-pattern chain-cylinder 38. The rest of the chain (not shown)is made up of tubes only. There is a smaller roll 52 under theindicator-lever 55 on the box-pattern chain. The patternsurfaces underthe lever 55 consist of rolls of two sizes, 52 and 52', and tubes 52",as shown in Fig. 8, making three different pattern-surfaces to act onthe indicator-lever 55. The pin-wheel is in engagement with thestarwheel 48. Through gears 14, 15, and 17 and the shaft 18, carryingsleeve 33, rotary motion is communicated to the pin-wheel 45, splined onthe sleeve 33, to turn the starwheel 48 and the drop-box-patternchain-cylinder 50. The pin-wheel 29, also splined on the sleeve 33, isin its intermediate position, out of engagement with the star-wheel 28and the star-wheel 35, so that the multiplierpattern chains arestationary. In the rotation of the drop-boX-pattern chain-cylinder 50 aslong as a smaller roll 52 comes, under the lever .55 the cylinder 50will continueto rotate; but when a roll 52 of larger diameter comesunder the indicator-lever 55 said lever will be raised, and throughconnector 68 the angle-lever 63 is movedto carry the sliding rod 59 tothe right in Fig. 2, and through the forked arm 69 the pin-wheel 29iismoved into engagement with the star-wheel 28, as shown in Fig. 3, andthrough the revolution of .the shaft 18 and the sleeve 33 the pinwheel29 will be revolved and communicate motion to the star-wheel 28 and themultiplier-pattern chain-cylinder 25. The rotation of themultiplier-pattern chain-cylinder 25 will move the roll 27 from underthe indicatorlever 30 and allow the lever 30 to drop. The spring 74 willact to move the angle-lever 72 to the position shown in Fig. 5 and causethe sliding rod 60 to be moved to the right in Fig. 2 and the forkedarm7 9 on said rod to move the pin-wheel 45 out of engagement with thestar-wheel 48, leaving the drop-boX-pattern chain-cylinder 50 at rest. aThe multiplierpattern chain-cylinder 25 will continueto revolve untilthe roll 27 is brought again under theindicator-lever 30.Whenthishappens,the indicator-lever 30 will be raised and throughconnector 77 will move the angle-lever72 to the position shown in Fig.2, causingthe slid ing rod 60 to be moved to the left in Fig. 2 andthrough the forked arm 79 carry the pinwheel 45 into engagement with thestar-wheel 48 to rotate the drop-boX-pattern chain-cyl- If a large roll52 is again brought 2 inder 50. under the indicator-lever 55, theoperation above described is repeated; but if a smaller roll 52' isbrought under the indicator-lever 55 the indicator-lever 55 is droppedand the spring66 will move the angle-lever 63 to move the rod 59-to .theleft in Fig. 2 and through the forked arm 69 move the pinwheel 29 intoits intermediate position, as shown in Fig. 1, leavingbothmultiplier-pattern chains at rest. If a tube 52". comes under theindicator-lever 55 in the revolution of the drop-box-patternchain-cylinder 50, the lever 55 is dropped lower, and through the actionof the spring 66 the angle-lever 63 is moved to the left, Fig. 2, tomove the sliding rod 59 and forked arm 69 and carry the pin-- wheel 29into engagement with the star-wheel 35, as shown in Fig. 4. Therevolution of the pin-wheel 29 will cause the star wheel 35 and themultiplier-pattern chain-cylinder 38 to revolve and carry the roll 40from under the indicator-lever 42 and allow said indicator-lever to dropand through connector 78 cause the lever 76 to move into the position.

shown in Fig. 6, allowing the vspring 74 to act to move the angle-lever72 into the position shown in Fig. 6 and cause the rod 60 to be moved tothe right, Fig. 2, and through the forked arm 79 tomove the pin-wheel 45out of engagement with the star-wheel48 and leave the drop-boX-patternchain-cylinder 50 at rest. When in the revolution of themultiplier-pattern chain-cylinder 38 the roll 40 is brought again underthe indicator-lever 42, said lever is raised, and through connector 78the lever 76 and the angle-lever 72 are moved into the position shown inFig. 2 to move the rod 60 and cause the forked arm 79 to move thepin-wheel into engagement with the star-wheel 48 and again put intooperation the drop-boX-pattern chain-cylinder 50 If a tube 52 againcomes under the indicator-lever 55, the operation above described isrepeated, and the multiplier-pattern chain-cylinder 38 is againrevolved; but if a large roll 52 comes under said indicatorlever 55 thenthe multiplier-pattern chainoylinder 25 is put into operation, as abovedescribed. It will be seen that by means of the lever 76, pivoted on theangle-lever 72, the removing of a roll from under either indicator-lever30 or 42 will lower the pivotpoint of said lever 76 (see Figs. 5 and 6)and allow the spring 74 to act to move the anglelever 72 to the rightand also the sliding rod and forked arm 79 to move the pin-wheel 45 outof engagement with the star-wheel 48 and leave the box-patternchain-cylinder 50 at rest.

It will be understood that the details of construction of myimprovementsmay be varied, if desired.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In pattern mechanism forlooms,the combination with thedrop-boX-pattern chain-cylinder, and a multiplier-patternchain-cylinder, and intermediate connecting mechanism, and mechanism foroperating said drop-box pattern chain-cylinder, and multiplier-patternchain-cylinder, of a second multiplierpattern chain cylinder, andintermediate mechanism connecting said second multiplierpatternchain-cylinder with the drop-boX-pattern chain-cylinder and thefirst-mentioned multiplier-pattern chain-cylinder, and mechanism foroperating said second multiplierpattern chain-cylinder,substantially asshown and described.

2. In pattern mechanism forlooms,the combination with thedrop-box-pattern chain-cylinder, a pin-wheel and star-wheel mechanismfor operating the same, a multiplier-pattern chain-cylinder, a pin-wheeland star-wheel mechanism for operating the same, and a secondmultiplier-pattern chain-cylinder, and a pin-wheel and star-wheelmechanism for oper ating the same, of an indicator-lever for the'cylindeigand each indicator-lever of the multiplier-patternchain-cylinders,and pattern-surfaces on the drop-boX-patternchain-cylinder, by means of which either multiplier-patternchain-cylinder is put into operation, or out of operatiomfrom thedrop-boX-pattern ch aincylinder, and pattern-surfaces on each of themultiplier-pattern chain-cylinders, by means of which thedrop-boX-pattern chain-cylinder is put out of operation, when eithermultiplier-pattern chain-cylinder is put into operation, and is put intooperation when either multiplier-pattern chain-cylinder is put out ofoperation, substantially as shown and described.

3. In the pattern mechanism of looms, a drop-boX-pattern chainmechanism, a multiplier-pattern chain mechanism, and a secondmultiplier-pattern chain mechanism, each multiplier-pattern chainmechanism having an indicator-lever connected to a centrallypivotedlever, the lowering of which at either end, will, through intermediateconnections, put the drop-boX-pattern chain mechanism out of operation,and the raising of which will put it into operation, substantially asshown and described.

4. In the pattern mechanism of looms, a drop-boX-pattern chainmechanism, a multi plier-pattern chain mechanism, and a secondmultiplier-pattern chain mechanism, each multiplier-pattern chainmechanism having an indicator-lever connected to a centrallypivotedlever, the movement of which in one direction will, through intermediateconnections, put the drop-boX-pattern chain mechanism out of operation,and the movement in the other direction will put the dropboxpatternchain mechanism into operation, substantially as shown and described.

ARTHUR S. OOYVAN.

.Vitnesses:

J. O. DEWEY, M. llAAs.

